JPH07312940A - Fertilizer application machine of rice transplanter - Google Patents

Abstract

PURPOSE:To obtain a compact fertilizer application device of a rice transplanter, capable of providing a fertilizer application structure, having the center of gravity at a low level and excellent in stability and readily performing the fertilizer supplying operations by arranging a delivery case of a fertilizer hopper at an offset position between an air blast pipe for the fertilizer application and a hopper. CONSTITUTION:This fertilizer application machine of a rice transplanter is obtained by installing a fertilizer hopper 46 nearly above a fertilizer air blast pipe 51 for feeding a fertilizer delivering wind and arranging a delivery case 47 of the fertilizer hopper 46 at an offset position between the air blast pipe 51 and the hopper 46. Furthermore, the delivery case 47 is preferably off set on the delivery downstream side of the air blast pipe 51 and a fertilizer taking outlet 70 opened to the delivery case 47 is preferably installed on the delivery upstream side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer application device for a riding rice transplanter, which is equipped with, for example, a seedling mount and a planting claw for continuously performing seedling planting work.

[0002]

2. Description of the Related Art A fertilizer hopper is provided substantially above a fertilizer blower pipe for supplying fertilizer blown air, and fertilizer fed downward from the hopper is conveyed to the fertilizer application point by the blown air from the blower pipe to apply fertilizer. There is a means to do it.

[0003]

However, in the case of such a structure in which the fertilizer hopper is provided above the fertilizer blower pipe,
Although a feeding case is incorporated between the blower pipe and the hopper, the front-rear width in these installations can be reduced,
There were problems such as making the vertical height large and inconvenient for fertilizer replenishment work to the fertilizer hopper, and making the aircraft bulky and unstable.

[0004]

Therefore, according to the present invention, a fertilizer hopper is provided substantially above a fertilizer blower pipe for feeding the fertilizer blowout air, and a fertilizer hopper feeding case is provided at an offset position between the blower pipe and the hopper. By deploying it, it is possible to make the fertilizer structure compact and minimize the front and rear width and vertical height width, and to have a low center of gravity and excellent stability, and also to easily perform fertilizer replenishment work for the fertilizer hopper. is there.

Further, by offsetting the feeding case to the lower delivery side of the blower pipe and providing the fertilizer outlet opening on the feeding case on the upper delivery side, for example, in the delivery case from the driver's seat side which is the upper delivery side. It is possible to easily take out the residual fertilizer and the like without any hindrance, and to easily return the taken-out fertilizer to the fertilizer hopper.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a side view of the fertilizer tank portion, FIG. 2 is a side view of the riding rice transplanter, and FIG. 3 is a plan view thereof. In the figure, (1) is a traveling vehicle on which an operator mounts an engine (2). The front frame (3) is mounted above the front part of the body frame (3), and the front wheel (6) for traveling the paddy field is supported in front of the gear shift case (4) through the front axle case (5), and the rear part of the gear shift case (4) is supported. The rear axle case (7) is connected to the rear axle case (7), and the rear axle case (7) supports the rear wheel (8) for traveling paddy fields. Then, the spare seedling mounts (10) are attached to both sides of the bonnet (9) covering the engine (2), etc., and the gear shift case (4) is attached by the vehicle body cover (12) on which an operator rides through the step (11). ) Etc., a driver's seat (13) is attached to the upper part of the vehicle body cover (12), and a steering handle (14) is provided in front of the driver's seat (13) at the rear of the bonnet (9).

Further, (15) in the drawing is a planting section comprising a seedling table (16) for planting 6 rows, a plurality of planting claws (17), etc. Forward tilting seedling stand (1
6) is supported by the planting case (20) through the lower rail (18) and the guide rail (19) so as to be slidable left and right, and the rotary case (21) is rotated at a constant speed in one direction. The pair of claw cases (22) and (22) are supported at the case (20), and a pair of claw cases (22) and (22) are arranged symmetrically around the rotation axis of the case (21).
(22) Attach the planting claws (17) (17) to the tip. A support frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and a three-point link mechanism (27) including a top link (25) and a lower link (26) is provided. Elevating cylinder (28) for connecting a supporting frame (24) to the rear side of the traveling vehicle (1) and moving up and down the planting part (15) through the link mechanism (27).
Is connected to the lower link (26), and the front and rear wheels (6) are connected.
(8) is driven to move, and at the same time, the seedlings for one plant are planted from the seedling table (16) that slides back and forth to the left and right.
It is taken out according to 7) and the seedlings are planted continuously.

Further, in the figure, (29) is a main transmission lever, and (3
(0) is a sub-shift lever for planting up / down and work traveling gear shifting, (3
1) is a planting sensitivity adjusting lever, (32) is a main clutch pedal, (33) and (33) are left and right brake pedals, and (3)
4) is a center float for two-row leveling, (35) is a side float for two-row leveling, and (36) is a side-row fertilizer applicator for six rows.

Further, as shown in FIGS. 4, 5 and 6, the engine (2) is mounted on the front portion of the pair of left and right rectangular tubular body bodies (3) (3), and the front axle (37) ( The front axle case (5) which pivotally supports the left and right front wheels (6) (6) via the (37) is attached to the lower surface of the vehicle body frame (3) (3) behind the engine (2), and the rear axle case (5) A continuously variable belt shift case (38) is provided between the left and right vehicle body frames (3) and (3), and the continuously variable shift case (3
8) A gear shift case (4) is provided between the left and right vehicle body frames (3) and (3), and rear axles (39) and (39) are provided.
A rear axle case (7) for pivotally supporting the left and right rear wheels (8) (8) is fixed to the lower surface of the rear end of the left and right vehicle body frames (3) and (3), and the output of the engine (2) is set to each shift case (3).
8) (4) is transmitted to each of the axle cases (5) and (7) as a traveling driving force to drive the front and rear wheels (6) and (8).

Further, a lift frame (4
0) Both ends of the left and right vehicle body frames (3) (3) are welded and fixed to the upper surface of the rear end of the vehicle body frame (3), and a lift pedal (41) is installed upright on the vehicle body frame (3) and the brake pedal receiving shaft (41). 40) Between the middle, the sub-frames (42) (42) that are inclined to the front low rear high are installed,
Between the sub-frames (42) (42), the lifting cylinder (2
8) is attached, and the link mechanism (27) formed by the top link (25) and the lower link (26) is attached via each frame (3) (40) (42), and the link mechanism is provided by the lifting cylinder (28). The planting part (15) is moved up and down by rocking (27).

Further, the vehicle body cover (12) is divided into three parts by the front step (43), the rear step (44) and the rear cover (45), and the rear cover (4) is formed.
5) to remove the fertilizer applicator (36) and install the fertilizer applicator (36) in the part.
Feeding case (47), float (3)
4) A blower turbo fan (50) for discharging fertilizer to the side-row fertilizer chute (48) of (35) through a flexible-type feed pipe (49), and a fertilizer main body frame (51) which is a cylindrical blower pipe. Is provided in the fertilizer application machine (36), and the right side opening of the fertilizer application frame (51) is closed by the lid (52) which can be opened and closed.
1) A turbo fan (50) is attached to the left end, and six sets of feeding cases (47) ... and delivery pipes (49) for six rows are arranged on a fertilizer main body frame (51).

Further, as shown in FIGS. 6, 7 and 8, the link frame (40) is provided at the rear end of the vehicle body frame (3).
A base frame (53) is attached to the upper side, and a fertilizer applicator (36) is provided via the base frame (53) which is horizontally laid horizontally, and a pair of left and right side stays (5) are provided.
4) The fertilizer applicator (36) is provided through the rear view portal frame structure of (54) and the base frame (53), and the rear ends of the left and right subframes (42) (42) above the link frame (40). Bolt the middle lower surface of the base frame (53) to the upper surface to fix the base frame (53)
The upper ends of the left and right side stays (54) (54) are fixed to the left and right ends by bolts, and the left and right side stays (5) are attached to the brackets (55) (55) at the rear ends of the left and right body frames (3) (3).
4) The lower end of (54) is fixed by bolts.

Further, elevating rails (56) are erected on both sides of a base frame (53) having an H-shape in a plan view to be horizontally laid horizontally, and four elevating rails (5), one pair of front and rear, and two pairs of left and right.
6) (56) (56) (56) through the fertilizer applicator (36)
Is installed so that it can be moved up and down, and a pair of left and right gas springs (57) (57) and a fertilizer body frame (51)
The fertilizer applicator (3
A bearing plate (58) which is attached to the vehicle body frame (3) and which supports the weight of the fertilizer applicator (36) by a rear axle case (7) arranged at the rear end of the vehicle body frame (3) and faces the left and right lifting rails (56) (56). ) (58) is welded and fixed to the fertilizer main body frame (51), and bearing rollers (59) ... which are rotatably fitted in the rails (56) are rotatably supported by the bearing plate (58), 2 rails (5
6) Two sets of (56) are provided symmetrically and one rail (5
The upper and lower two rollers (59) (59) are attached to 6), and the fertilizer application frame (51) is attached to the four rails (56).
And 8 rollers (59) ...
It is supported by 3) so that it can move up and down.

The lower end of the gas spring (57) is connected to the bracket (55), and the bearing plate (5)
8) is connected to the upper end of the gas spring (57), the rail (56) and the gas spring (57) are provided substantially parallel to each other, and the gas spring (57) is installed at the center of gravity of the fertilizer applicator (36) in the front-rear width direction. The fertilizer applicator (3
The gas spring (57) has an extension force which is approximately equal to or slightly smaller than the weight of 6). Thus, in the passenger rice transplanter in which the rear wheel (8) is mounted on the rear part of the traveling vehicle (1) via the rear axle case (7), gas springs (57) (57) which are a pair of left and right elastic rising members. Fertilizer body frame (51) of the fertilizer applicator (36) on the rear axle case (7) through the
A gas spring (57) is connected to the fertilizer applicator (36) which is mounted on the traveling vehicle (1) so as to be vertically movable. The gas spring (57) is connected to the fertilizer applicator (36) by using the rear axle case (7). The support is stabilized, and the operation of lifting the fertilizer applicator (36) by the operator is reduced by the support of the gas spring (57), and the workability such as cleaning or picking up residual fertilizer by lifting the fertilizer applicator (36) is improved. At the same time, preventing the fertilizer applicator (36) from tilting back and forth or left and right due to the rising force of the gas spring (57),
The vertical movement of the fertilizer applicator (36) is smooth, and the vertical guide structure of the fertilizer applicator (36) is configured to be simple, lightweight and compact by the elevator rails (56). In addition, as shown in FIG. 7, an auxiliary gas spring (60) is provided on the front side with substantially the same structure as the gas spring (57), and four gas springs (57) (57) (60) (6) are provided on the left and right.
0) may raise the fertilizer applicator (36).

Further, as shown in FIGS. 1, 9, 10, and 12, a pair of left and right handles (61) (61) that an operator holds when lifting the fertilizer applicator (36) are provided in the fertilizer main body case ( 51) by welding and fixing it to the handle (61) by the support shaft (6
The lock arm (63) is rotatably supported via the (2) and the reinforcing ribs (6) of the lifting rail (56).
The upper and lower engaging holes (65) and (66) are formed in 4), and the lock arms (63) are engaged in the engaging holes (65) and (66) to move the fertilizer applicator (36) at the ascending or descending position. It is a fixed support, and a release lever (67) provided on a lock arm (63) is extended below the handle (61), and an operator operates the release lever (67) while grasping the handle (61). The lock arm (63) can be disengaged from the engagement holes (65) (66).

A case bracket (68) is welded and fixed to the fertilizer main body frame (51), and the feeding case (47) is fixed to the case bracket (68) by a bolt (4).
7a) The fixing case (47) (47), which is fixed and fixed as one unit, is arranged between the left and right lifting rails (56) (56), and the lifting rail (5)
6) Two-row feeding case (47) outside the machine of (56)
(47) are respectively arranged, and three cases of feeding cases (47) are arranged side by side as one set of two articles.

Further, FIGS. 1, 11, 12, 13 and
As shown in FIGS. 14 and 15, the lower outlet of the tank (46) is fitted into the inlet (69) on the front side of the upper surface of the feeding case (47), and the outlet is provided on the lower side of the front surface of the feeding case (47). (70) forming and removable cap (7
The outlet (70) is closed by 1). Chute (7) to be fixed by welding to the fertilizer body frame (51)
2) surrounds the outside of the outlet (70) and caps (7)
1) is removed, the outlet (70) is opened, and the tank (4
6) The fertilizer (A) inside is made to flow down to the chute (72), at which time the fertilizer applicator (36) is moved up and down the rail (5).
It is supported in the ascending position of 6), the space between the chute (72) and the base frame (53) is enlarged, and the fertilizer container can be easily inserted below the chute (72) to remove the residual fertilizer. It is configured to be easy.

A bottom cover (75) is provided on the lower surface of the feeding case (47) through a closing lever (73) and a spring (74).
Is detachably fixed, and the outlet pipe (76) is integrally formed on the lower surface of the bottom lid (75) made of hard synthetic resin, and is made of soft synthetic resin for fitting the front end portion to the fertilizer main body case (51). Of the joint pipe (77), the front end of the outlet pipe (76) is detachably fitted to the rear end of the pipe (77), and the delivery pipe (49) is fitted to the rear end of the outlet pipe (76). The blower of the turbo fan (50) is blown out from the hollow part of the fertilizer main body frame (51) to the pipes (77) (76) (49), and the outlet pipe (78) of the bottom lid (75) is used. 76) The fertilizer (A) falling in the middle is moved to the delivery pipe (49). The inner diameter of the outlet pipe (76) on the inlet side is reduced to form a wind speed acceleration portion (79) so that the fertilizer (A) suction force and the conveying force by the air blow at the outlet (78) are increased. There is. Also, the closing lever (7
3) is rotatably attached to the pivot shaft (73a) of the feeding case (47), and the hook portion (73b) is engaged with the projecting shaft (75a) of the bottom lid (75) so that the feeding case (47) is bottomed. The lid (75) is fixed.

Further, the intake port (80) and the outlet port (81)
And an outlet plate (84) having a plurality of substantially square outlets (83) ... and an outlet plate (86) having a discharge port (85) on the same circumference. The plates (82), (84) and (86) made of circular flat plates are arranged in a multi-layer between the feeding case (47) and the bottom lid (75), and the feeding shaft (87) is attached to the feeding case (47). Is rotatably supported substantially vertically, and the lower end side of the payout shaft (87) is passed through the central portion of each plate (82), (84), (86), and the payout shaft (8
7) A rubber ring (88) is detachably locked to the lower end, each plate (82) (84) (86) is supported downward on the feeding shaft (87), and each plate (82) (84) (86) is supported by a spring (74). The plates (82), (84) and (86) are elastically pressed, and the inlet plate (82) and the outlet plate (86) are locked to the feeding case (47) and fed to each plate (82) (86). While letting the shaft (87) rotate freely, the feeding plate (84) is supported by the feeding shaft (87) so as to be supported by the feeding shaft (87).
Is forced to rotate, and from the intake port (80) to the delivery port (8
The fertilizer (A) that has entered 3) is moved to the discharge port (85) and dropped toward the outlet (78).

A brush (8) for removing excess fertilizer (A) on the upper surface of the delivery port (83) at the end of the intake port (80)
9), and the height of the brush (89) is lower than the upper surface of the feeding plate (84) by attaching the brush (89) to the feeding case (47) through the photographing (90) whose height is adjusted. Adjustment is performed from the outside of the feeding case (47), and the amount of fertilizer (A) delivered to the feeding outlet (83) is adjusted.

The outlet (8) of the inlet plate (82)
1) The compressed air intake (91) facing the 1) is fed to the feeding case (4).
7), the hollow portion of the fertilizer main body case (51) and the compressed air inlet (91) are communicated with each other by a shunt pipe (92), and the turbo is provided through the pipe (92) and the inlet (91). Blow-off from fan (50) is blown out (81)
To the discharge port (85) and the feeding port (8
3) The air is blown from the air outlet (81), and the fertilizer (A) in the feeding port (83) is forcibly dropped downward by the air blowing, and the granular fertilizer (A) or this powder is fed into the feeding port (83). It is configured to prevent it from remaining inside.

By the way, the feeding case (47) is provided offset to the rear of the tank (46) and the frame (51), which is the lower side of the fertilizer delivery air transfer, and the tank (46) is provided almost directly above the frame (51). ) Are arranged in close proximity to each other so that the overall height of these is set to the minimum height to achieve compactness and a low center of gravity, and the outlet (70) is opened to the front side of the feeding case (47) to provide a driver seat. Extraction of residual fertilizer in the feeding case (47) and tank (4) from (13)
6) It is configured so that it can be easily returned to the inside.

Further, as shown in FIGS. 4, 5, 16 and 17, the PTO shaft (93) for transmitting the output of the engine (2) to the planting portion (15) is rearward from the gear shift case (4). And the lift frame (40).
The bearing tube (94) is welded and fixed on the left side, and the bearing tube (94) is fixed.
The front end of the fertilizer input shaft (95) is interlocked with the middle of the PTO shaft (93) through the chain (96). A crank plate (97) is fixed to the rear end of the fertilizer input shaft (95). Further, a square pipe-shaped rear surface frame (98) for integrally fixing the rear end sides of the bearing plate (58) and the case bracket (68) is provided, and the rear surface frame (98) is arranged substantially parallel to the fertilizer main body frame (51). The bearing (100) is fixed to the rear frame (98) via the bracket (99) while being horizontally mounted, and the fulcrum shaft (10) is attached to the bearing (100).
The feed amount adjusting lever (102) is rotatably supported via 1). And, it is provided with input and output rods (106) and (107) which are detachably connected via a coupling lever (103) and engaging plates (104) and (105), and the crank plate (97) and the feed amount adjusting lever (102). ) Is connected to one end side of the rod by means of the rods (106) and (107).

A feeding drive shaft (109) is rotatably supported by the rear frame (98) through a bearing plate (108), and a swing arm (110) is supported on the drive shaft (109).
Is fixed to the feeding amount adjusting lever (102) and one end side of the telescopic rod (111) whose length is adjustable is connected, and the swing arm (110) is supported by a plurality of shaft holes (112). Adjustable telescopic rod (111)
A rotation lever (114) for connecting the other end of the rotation rod (114) and changing the ratio of the connection distance between the output rod (107) and the telescopic rod (111) to the fulcrum shaft (101) by rotating the screw (113). Feeding amount adjustment lever (1
02), and the plurality of shaft holes (112) ...
The length of the swing arm (110) connecting the telescopic rod (111) is changed according to the selection, and the swing stroke of the arm (110) is changed to perform the multistage adjustment of the feed amount of fertilizer and the rotary lever. By operating (114), the feed amount adjusting lever (102) is slid in the axial direction of the screw (113) with respect to the fulcrum shaft (101) to connect the lever (102) and the rod (107) to the fulcrum shaft (101). The ratio of the length of the point and the length of the connecting point of the lever (102) and the rod (111) with respect to the fulcrum shaft (101) is changed, and the reciprocating stroke of the telescopic rod (111) is changed steplessly to make the fertilizer feeding amount. It is configured to perform stepless adjustment of.

Further, as shown in FIG. 14, a bearing (115) is bolted and fixed to the rear frame (98),
A clutch shaft (116) is rotatably supported by the bearing (115) through a follow-up prevention one-way clutch (115a), and an input link (118) is connected to the clutch shaft (116) through a one-way clutch (117). At the same time, the swinging link (119) is fixed to the feeding drive shaft (109), and the link (119) is connected to the input link (118) through a link bar (120) to form an input link (118).
To rotate the clutch shaft (116) intermittently in one direction, and the one-way clutch (117) in which the input link (118) returns returns to the clutch shaft (11) by idling.
The reverse rotation of 6) is prevented by the braking action of the one-way rotation prevention one-way clutch (115a) and the bearing (115).

The clutch case (121) is fixed to the feeding case (47), and the feeding shaft (8) is attached.
7) The input shaft (124) is always connected to the upper end side via the bevel gears (122) (123).
A clutch (125) for connecting the clutch shaft (24) to the clutch shaft (116) in a disengageable manner is provided.
25) is internally provided in the clutch case (121), and a clutch lever (126) and a clutch arm (127) for connecting and disconnecting the ratchet clutch (125) are distributed to the front and rear of the clutch case (121). A wire (130) which is installed and stretched by an outer receiving member (129) of a rear frame (98) on a planting bar stop lever (128) provided on the upper back surface of the seedling mounting table (16) of the planting section (15). The clutch arm (127) is connected via. Then, the planting bar stop lever (12
8) When any of the planting claws (17) for 6-row planting is stopped by operation, fertilizer application is performed by disconnecting the row stopping clutch (125) corresponding to the stopped planting claw (17). The operation is stopped, and fertilizer is applied only to the row on which the seedlings are to be planted by the planting claws (17). ) ... while fertilizing the fertilizer, and the operator operates the clutch lever (126) to apply the ferrule.
By cutting 5), the 6-case feeding case (4
7) ... Any or all of them are arbitrarily selected so that fertilization can be stopped regardless of seedling planting.

As is apparent from the above, the fertilizer applicator (36)
When the vehicle is mounted on the traveling vehicle (1), the rear cover (45) is removed, and the central portion of the base frame (53) in plan view H is bolted and fixed to the upper surface of the rear end of the subframe (42), and the subframe (42) is fixed. Left and right side brackets (5
5) The left and right side stays (54) and (54) are fixed by bolts between (55), and the link frame (40) is provided at the rear end of the vehicle body frame (3) substantially directly above the rear axle case (7) and the rear axle (39). The base frame (53) is fixed via. Then, the bearing rollers (59) are fitted into the elevating rails (56) on the base frame (53) from the upper end openings, and the fertilizer main body frame (51) is inserted through the rails (56) and the rollers (59). ) Is supported by the base frame (53) so as to be able to move up and down, and a pair of left and right bearing plates (58) (5) of the fertilizer main body frame (51) are also supported.
The left and right gas springs (57) and (57) are fixed by bolts between the lower right and left brackets (55) and (55), and the fertilizer applicator (36) is supported by the gas springs (57). Then, the delivery pipes (49) are connected between the side-row fertilizer chute (48) of the floats (34) and (35) and the delivery case (47), and are delivered by the air blow of the turbo fan (50). The fertilizer (A) in the tank (46) taken out to the case is delivered from the delivery pipe (49) to the side-row fertilizer chute (48) so that the fertilizer (A) is adjacent to the seedling planting row by the planting claw (17). ) Is applied and side fertilization is performed.

As described above, by mounting the fertilizer applicator (36) using the link frame (40), the base frame (53) can be formed lightweight and compact, and the load of the fertilizer applicator (36) can be applied to the body frame (36). 3) By supporting at the rear end, the fertilizer applicator (36) can be stably supported on the rear axle (39). The fertilizer body frame (51)
Since the weight of the fertilizer applicator (36) is received by the rear axle case (7) via the gas spring (57), the fertilizer applicator (36) can be supported at a stable position on the traveling vehicle (1) side, and Vibration generated on the traveling vehicle (1) side can be absorbed by the gas spring (57), and due to the shock absorber effect of the gas spring (57), the fertilizer feeding amount is easily stabilized and the fertilizer applicator (36) body The durability of can be improved.

Further, by supporting the fertilizer applicator (36) at the lowered position of the lifting rail (56), the body cover (1
2) The fertilizer application can be performed by supporting the fertilizer application device (36) at a low position on the upper surface. On the other hand, by supporting the fertilizer applicator (36) at the raised position of the lifting rail (56), a container for receiving the fertilizer (A) remaining in the tank (46) can be easily inserted below the chute (72). The fertilizer body frame (51) to the tank (46)
And the lowering width of the fertilizer applicator (36) can be easily made compact and the center of gravity of the fertilizer applicator (36) can be made close to each other.
The bottom cover (75) is removed downward by the unlocking operation of 3), the rubber ring (88) is removed, and the inlet plate (82), the feeding plate (84) and the outlet plate (86) are moved downward from the feeding case (47). Then, the plates (82) (84) (86) can be cleaned.

Further, the engagement plates (104) (105) are separated by the unlocking operation of the coupling lever (103), the input rod (106) and the output rod (107) are separated, and the traveling vehicle (1). The connection between the side and the fertilizer applicator (36) is released without using a tool, and the fertilizer applicator (36) can be raised by the guide of the lifting rail (56). Further, the connection of the swing arm (110) and the telescopic rod (111) by the shaft holes (112) ..., and the ratio of the distance of each rod (107) (111) connection point to the fulcrum shaft (101) can be freely changed. By adjusting the feeding amount adjusting lever (102), the rotation speed of the feeding shaft (87) is changed in multiple steps or steplessly while the rotation speed of the fertilizer input shaft (95) is kept constant, and the feeding plate (84 The amount of fertilizer (A) delivered can be adjusted in multiple stages or steplessly. Moreover, planting section (15)
Operation of the bar stop lever (128) of the planting part (15)
Just by changing the number of planting nails in the
Fertilizer feeding of the feeding case (47) facing 7) can be automatically stopped via the clutch arm (127), waste of fertilizer can be prevented, and the feeding case (47) for 6 rows can be formed. The clutch levers (126) provided corresponding to each other can be arbitrarily turned on and off by an operator, and 6
The fertilizer (A) feeding by the whole or a part of the feeding case (47) can be stopped manually.

Further, the feeding case (4) is attached to a case bracket (68) having front and rear ends fixed between two substantially parallel fertilizer main body frames (51) and a rear surface frame (98).
By fixing 7) with bolts (47a),
The fertilizer tank (46) and the feeding case (47) can be firmly and strongly supported on the front and rear frames (51) and (98) in a double-sided state, and vibration and chatter of the fertilizer feeding can be minimized. it can.

By the way, as shown in FIGS. 1, 6 and 11, the tank (46) is provided with a lid (131) integrally formed with the entire line so as to be openable and closable on the pivot shaft (132), and the tank (4)
6) Each partition plate (13) for partitioning the inside of each strip chamber (46a)
3) A notch (134) for communication and leveling is provided in the center of the upper end of 3), and each strip chamber (46) located below the notch (134).
A net (135) for removing foreign matter is stretched in a), and the tank (4) on the side of the fulcrum shaft (132) is provided in each thread chamber (46a).
The inner sag (136) for preventing the fertilizer from flowing out from the gap between the lid (131) and the lid (131) is fixed to the lid (131), and the gap formed between the tank (46) and the lid (131) is dripped inside. It is configured to be closed at (136).

FIG. 18 shows a seedling long guide (137) provided at the seedling take-out port of the seedling placing table (16) provided with a blow-out air in the feed-out pipe (49) for discharging. A guide air passage (49a) that faces the discharge port near the intake port of the guide (137) is branched and formed on the delivery pipe (49).
An air passage switching shutter (138) provided at this branch position is interlockingly connected to the lower link (26) through a link mechanism (139), so that the air passage (4) for the raising operation of the planting part (15) (4).
The shutter (138) is switched so as to open 9a), and the clogging of the guide (137) intake is prevented by the delivery air from the delivery pipe (49) and the air passage (49a) to improve the planting accuracy. It is configured to improve.

Further, in FIG. 19, a turbo fan (50) is provided at a substantially central position on the left and right sides of the rear part of the machine, and the fertilizer main body frame (51) is divided into two in the vicinity of the center so that two air passages (51 a ) (51b) is formed so that the fan (50) is arranged at one end side of the main body frame (51) so that the difference in air flow between the strips is minimized and fertilization accuracy is improved. There is.

Further, FIG. 20 shows a side float (35).
The discharge wind of the discharge pipe (49) is provided on the rear upper surface so that the discharge air can be discharged. The mud removal pipe (49b) that faces the discharge port on the rear upper surface of the float (35) is the discharge pipe (49).
The air passage switching shutters (140) (141) provided at the branch position are interlockingly connected to the line stop lever (128) or the auxiliary shift lever (30) which also functions as the planted clutch lever via the wire (142). The lever (1
28) or (30), except when the fertilizing work is performed, the shutter (14) is opened so as to open the pipe (49b) side air passage.
0) (141) is switched, the wind from the pipe (49b) is applied to the mud accumulated on the rear part of the float (35) to eliminate the mud, and to prevent streaking during planting and the side float (35).
It is configured to improve accuracy in the control for performing the sensitivity correction at the inclination angle of. In addition to the side float (35), the center float (34) may be provided with the mud removal pipe (49b).

Further, in FIG. 21, a branch exhaust port (51c) is formed at the left end of the fertilizer main body frame (51) connected to the turbo fan (50), and an air passage switching shutter (143) is provided at this branch position. A turbo fan (5) is provided by connecting a hose (144) for cleaning the inside of the tank (46) after the fertilizer is discharged to the exhaust port (51c).
0) is used to clean the inside of the tank (46).

Further, FIG. 22 shows a fertilizer powder removing case (145) which is detachably installed in the fertilizer tank (46) provided with a pressure type or photoelectric type powder full amount alarm sensor (146). Case (47) and dust removing case (1
The sensor (146) is installed at the lowermost height position of the powder leakage net (147) partitioning 45), and when the fertilizer powder is full, each sensor is displayed by a signal from the sensor (146). It is configured to detect the full amount of each.

Further, FIG. 23 shows the fertilizer chute (4
8) shows a combined structure of the boot (148) of FIG. 8) and the auxiliary plate (150) of the groove making plate (149).
Fertilizer clogging alarm sensor (15)
In contrast to 1), the sensor mounting portion of the boot (148) is notched in a gate shape, and a thick rib (148a) is formed on the notched edge of the notched portion (152). A shaft hole (154) to be engaged with a cylindrical shaft (153) protruding from the upper side is opened on the left and right side surfaces of the auxiliary plate (150), and the tongue piece (155) on the rear side of the boot (148) is bent. A notch (156) for engaging the locking portion (155a) is formed on the rear side of the left and right side surfaces of the auxiliary plate (150), and the auxiliary plate (150) is attached to the shaft (153) of the boot (148) when united.
First engage the shaft holes (154) of the
0) is rotated so that the notch (15) is formed in the locking portion (155a).
6) is engaged to perform this coalescence.
In this case, the height (H) of the auxiliary plate (150) is made as short as possible to reduce the clogging of the fertilizer (the boot (148) is vibrated and is difficult to clogging), and the cutout (152) is used. The sensor (151) is provided at a position (h) that is the maximum distance from the ground to improve the detection accuracy.

Furthermore, in FIG. 24, the sensor wire (151a) connected to the fertilizer clogging alarm sensor (151) of the fertilizer chute (48) is not branched from the middle of the sensor wire, but is independent for each line from the beginning of the control section. And along the delivery pipes (49) up to the groove,
The alarm sensor (151) is configured to be easily installed.

FIG. 25 shows a configuration example in which the seedling mat retainer (158) is also moved up and down in association with the vertical slide mechanism (157) of the fertilizer applicator (36) behind the seedling placing table (16). The slide frame (160) fixed to the main frame (159) of the fertilizer applicator (36) is attached to the planting case (2).
The guide rail (161) fixed to the (0) side is vertically slidably supported via the guide roller (162), while the arm (163) of the main frame (159) is slidable left and right to support the seedling mat holding column (164). ) Is supported, and the holder (165) at the base end of the seedling mat retainer (158) is attached to the vertical axis (164a) of the column (164) via the vertical height adjusting screw (166) so that the mounting height can be freely adjusted. , The seedling mat retainer (158) is moved up and down in conjunction with the up and down movement of the fertilizer applicator (36), so that the arm (1
63) It is configured so as to facilitate the inspection of surrounding troubles, the removal work of the remaining seedlings near the seedling intake of the seedling mounting table (16), and the setting or replacement work of the planting claws (17). There is.

[0041]

As is apparent from the above embodiments, the present invention provides a fertilizer hopper (46) substantially above the fertilizer blower pipe (51) for feeding the fertilizer blowout air, and at the same time, these blower pipes (51) and Since the feeding case (47) of the fertilizer hopper (46) is placed at the offset position between the hoppers (46), the front and rear width and the vertical height width are minimized to make it compact and have a low center of gravity and stability. In addition to providing an excellent fertilization structure, it is possible to easily perform fertilizer replenishment work for the fertilizer hopper (46).

Further, the feeding case (47) is attached to the blower pipe (5).
Since the fertilizer outlet (70) opening to the feeding case (47) is provided on the delivery upper side while offsetting to the delivery lower side of 1), for example, from the driver's seat (13) side which is the delivery upper side. It is possible to easily take out the residual fertilizer in the feeding case (47) without any trouble, and it is also possible to easily return the taken-out fertilizer to the fertilizer hopper (46). Has a great effect.

[Brief description of drawings]

FIG. 1 is a side view of a fertilizer machine.

FIG. 2 is an overall side view.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of the traveling vehicle.

FIG. 5 is a plan view of the same.

FIG. 6 is a rear view of the fertilizer application unit.

FIG. 7 is a side view of a base frame portion.

FIG. 8 is a rear view of the same.

FIG. 9 is a plan view of the same.

FIG. 10 is an enlarged view of FIG. 9.

FIG. 11 is a side view of the fertilizer applicator.

FIG. 12 is a side view of a feeding case portion.

FIG. 13 is a rear view of the same.

FIG. 14 is an enlarged view of FIG.

FIG. 15 is a plan view of a feeding case portion.

FIG. 16 is a side view of the fertilizer applicator drive unit.

FIG. 17 is a rear view of the fertilizer applicator drive unit.

FIG. 18 is a side view of the seedling take-out section.

FIG. 19 is a plan view of a fertilizer application frame portion.

FIG. 20 is a side view of a side float portion.

FIG. 21 is an explanatory diagram of a turbo fan unit.

FIG. 22 is an explanatory view of a fertilizer powder collecting case portion.

FIG. 23 is an explanatory diagram of the formation of the groove portion.

FIG. 24 is an explanatory view of the arrangement of the sensor wire portion.

FIG. 25 is a side view of the seedling mat retainer.

[Explanation of symbols]

 (46) Fertilizer tank (fertilizer hopper) (47) Feeding case (51) Fertilizer application frame (blast pipe) (70) Outlet

Front page continuation (72) Inventor Masaru Matsumoto 1-32 Chayamachi, Osaka City Yanmar Agricultural Machinery Co., Ltd.

Claims (2)

[Claims] 1. A rice planting plant characterized in that a fertilizer hopper is provided substantially above a fertilizer blower pipe for feeding the fertilizer blown air, and a feed case for the fertilizer hopper is arranged at an offset position between the blower pipe and the hopper. Fertilizer applicator. 2. The fertilizer applicator for a rice transplanter according to claim 1, wherein the feeding case is offset to the lower delivery side of the blower pipe, and the fertilizer outlet opening to the feeding case is provided on the upper delivery side.